Man in hospital after mysterious explosion

Emergency services were called to reports of a house fire a Tennyson Cres address in Stoke, Nelson just before 2pm. Photo / File

An investigation has been launched after reports of a mysterious explosion that has hospitalised a Stoke man.

Emergency services were called to reports of a house fire at a Tennyson Cres address in Stoke, Nelson just before 2pm.

While two appliances were en route, the Fire Service received more calls reporting an explosion at the address.

When fire crews arrived they could not see any fire or smoke.

However, they found one person suffering "pretty bad burns", according to Fire Service southern communications shift manager Daryl Ball.

St John confirmed that one person was taken to hospital in a serious condition.

Mr Ball said it appeared there had been an explosion in a sleep-out and police were now investigating.